What is the role of the cell membrane in cell division?

Answers

Answer 1
Answer: it controls the movement of particles

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1. Fingerprints may be resolved into three large, general groups of patterns: the arch, the loop, and the ____.a. bulbs. b. ridge. c. radial. 2. In 1990, the FBI began a pilot project called _____, which stores DNA profiles from across the country in a series of local, state, and national databases, all linked via computers. a. IAFIS b. CJIS c. CODIS d. NDIS 3. Impressions produced by the ridged skin on human fingers, palms, and soles of the feet are _____ prints. a. plastic b. latent c. visible d. dust 4. What is the most commonly used facial composite software in the United States? a. FACES b. Identi-Kit 2000 c. CompuSketch d. SuspectID 5. What is the most significant breakthrough in forensic science since the development of fingerprinting? a. ballistics tests b. handwriting analysis c. DNA profiling d. investigative psychology 6. What is the process of identifying psychological and social characteristics surrounding the crime as well as the manner in which it was committed? a. psychological profiling b. criminal investigative analysis c. investigative psychology d. case linkage 7. DNA typing was first described in 1985 by English geneticist a. James Watson. b. Edward Southern. c. Francis Crick. d. Alec Jeffreys. 8. crime lab’s DNA analysis unit examination and characterization of body fluid is conducted through __________ serological techniques. a. traditional b. modern c. classical d. neoclassical 9. MitoSearch is a software package used by crime labs to compile and analyze a. the mtDNA database. b. criminal histories. c. arms and ammunition d. ink and print traces. 10. Two standards have been used to govern the admission of scientific evidence: the _____ test and the Frye test. a. relevancy b. Daubert Standard c. eliminaton d. reliability prong
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A parallel DC circuit has a total current of 4 Amperes and a resistance of .5 Ohms. If the current is doubled, and the resistance is halved, how many times more is the new power compared to the old power?

Answers

The answer is 2 times.

In parallel DC circuit the power (P) can be calculated by using the values of total current (I) and resistance (R):
P = I²R

The old power is:
Po = Io² x Ro
Io = 4 A
Ro = 0.5 ohms (Ω)
So,Po = 4² A x 0.5 Ω = 8 W

The new power is:
Pn = In² x Rn
In = 4 A x 2 = 8 A
Rn = 0.5 Ω ÷ 2 = 0.25 Ω
So, Po = 8² A x 0.25 Ω = 16 W

Pn ÷ Po = 16 W ÷ 8 W = 2
Thus, the new power is 2 x higher than the old power.

_______ is a subtype of the continental climate. A. Tropical wet B. Humid subtropical C. Semiarid D. Subarctic

Answers

Answer: B. Humid subtropical

Continental climates are characterized by variation in temperatures. Continental region exhibit seasonal temperature variations  like warm to hot summers and cold to severely cold winters. A humid subtropical climate is a subtype of the continental climate because it also exhibit similar temperature ranges.  It is a zone of climate characterized by hot, humid and wet summers.

the answer is D Subarctic

How many electrons are in the n = 2 shell of the oxygen atom before bonding?

Answers

Answer: 6 electrons

Explanation: Oxygen atom has atomic no of 8 which means it has got 8 electrons. n=2 depicts that the electrons have principle quantum no = 2. According to Afbau's rule the electrons are arranged in shells of increasing energy as follows:

O(8)-1s^22s^22p^4

Thus there are 2 electrons in 2s and 4 electrons in 2p which makes a total of 6 electrons.

6 electrons are in then 2nd shell, this is because oxygen has 8 electrons and two are already in the first shell leaving only 6 left to go into the 2nd shell 

Finding a high place to wait is a safety measure during aa.

thunderstorm.

c.

hurricane.
b.

tornado.

d.

flash flood.

Answers

The correct answer is Flash flood.

A sudden flood that is a result of heavy rain is called a flash flood. It lies in the low lying areas. The rain might sometimes accompany thunderstorm, hurricane, or snowfield. The difference between a flash flood and normal flood is that it lasts less than till 6 hours. In this case a high place can be used as a temporary shelter and once the flash flood is gone, anyone can shift to his or her normal routine.





Flash flood .................

Why is preventing pollution at its source the first strategy in minimizing environmental risk?a.

It is easier and more effective to prevent pollution than to clean up and dispose of waste.
b.

Remediation of contamination is easier than pollution prevention.
c.

Habitat restoration cannot be undertaken with modern technologies.
d.

Safe waste disposal is the easiest was to minimize environmental risk.

Answers

The control of pollution is key to minimize environmentalrisk due it is easier and more effective to prevent pollution than to clean up and dispose of waste (option A).

What is pollution?

Pollution refers to the contamination of water, air (atmosphere), and soils with nocive substances that may be harmful to the environment.

  • Pollution may also be harmful to human health, as well as to life in the surrounding ecosystems (either aquatic or terrestrial ecosystems).

  • Pollution may significantly alter the delicate internal equilibrium (homeostasis) of the whole ecosystem.

In conclusion, it is easier and more effective to prevent pollution than to clean up and dispose of waste (option A).

Learn more about pollution here:

brainly.com/question/24704410

The correct answer for this question is a) It is easier and more effective to prevent pollution than to clean up and dispose of waste.

Yes, it is more effective way to control environmental risk by preventing pollution at its source. First it help us to control the flow of toxicity through water and air. It is often more difficult and expensive to control pollution after it has been released into the environment so it will also help us to cut the cost of treatment of pollutants

How are water currents similar to air currents? How are they different?

Answers

Water currents and air currents are similar because they are both a mechanical currents that involves the physical movements of particles. How are they different? water currents is composed of liquid material while air current is composed of gas material. However, they are both controlled by density.